import Vue from 'vue'
import VueRouter from 'vue-router'
// import Home from '../views/Home.vue'
// import Student from "../views/Student.vue"
// import Login from "../views/Login.vue"
// import Fraction from "../views/Fraction.vue"

Vue.use(VueRouter)

const routes = [
  // {
  //   path: '/',
  //   name: 'Home',
  //   component: Home,
  //   // 重定向路径，访问/时会自动跳转到student页面
  //   redirect:'/student'
  // },
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

router.beforeEach((to, from, next) => {
  if (to.path != "/login") {
    if (localStorage.getItem("usr")) {
      next();
    } else {
      next("/login");
    }
  } else {
    next();
  }
})

const originalPush = VueRouter.prototype.push
   VueRouter.prototype.push = function push(location) {
   return originalPush.call(this, location).catch(err => err)
}

export default router